28761195

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{61}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 50702112

約数和(自身を除く): 21940917

約数列:

[1, 3, 5, 15, 17, 43, 51, 61, 85, 129, 183, 215, 255, 305, 645, 731, 915, 1037, 1849, 2193, 2623, 3111, 3655, 5185, 5547, 7869, 9245, 10965, 13115, 15555, 27735, 31433, 39345, 44591, 94299, 112789, 133773, 157165, 222955, 338367, 471495, 563945, 668865, 1691835, 1917413, 5752239, 9587065, 28761195]

約数ペア:

[(1, 28761195), (3, 9587065), (5, 5752239), (15, 1917413), (17, 1691835), (43, 668865), (51, 563945), (61, 471495), (85, 338367), (129, 222955), (183, 157165), (215, 133773), (255, 112789), (305, 94299), (645, 44591), (731, 39345), (915, 31433), (1037, 27735), (1849, 15555), (2193, 13115), (2623, 10965), (3111, 9245), (3655, 7869), (5185, 5547)]